<template>
  <div>
   <!-- 面包屑导航区域 -->
   <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
        <div id="main" style="width:750px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import * as echarts from 'echarts'
import _ from 'lodash'

export default {
    data(){
        return {
            // 需要合并的数据
            options: {
                title: {
                text: '用户来源'
                },
                tooltip: {
                trigger: 'axis',
                axisPointer: {
                    type: 'cross',
                    label: {
                    backgroundColor: '#E9EEF3'
                    }
                }
                },
                grid: {
                left: '3%',
                right: '4%',
                bottom: '3%',
                containLabel: true
                },
                xAxis: [
                {
                    boundaryGap: false
                }
                ],
                yAxis: [
                {
                    type: 'value'
                }
                ]
            }
        }
    },
    // 生命周期
    async mounted(){
       //报表的数据
       let ret = await this.http.get('reports/type/1')
       console.log( ret );
       var chartDom = document.getElementById('main');
       var myChart = echarts.init(chartDom);
       // 合并 配置对象 + 后台数据对象
       const result = _.merge(ret.data, this.options)
       console.log( result );
       myChart.setOption( result );
    }
}
</script>

<style lang="less" scoped>

</style>